US4303726A - Methods and compositions for preservation of timber - Google Patents

Methods and compositions for preservation of timber Download PDF

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Publication number
US4303726A
US4303726A US06/162,820 US16282080A US4303726A US 4303726 A US4303726 A US 4303726A US 16282080 A US16282080 A US 16282080A US 4303726 A US4303726 A US 4303726A
Authority
US
United States
Prior art keywords
timber
metal
boron
organic compound
carboxylic acid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/162,820
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English (en)
Inventor
John H. W. Turner
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Manchem Ltd
Original Assignee
Manchem Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Manchem Ltd filed Critical Manchem Ltd
Application granted granted Critical
Publication of US4303726A publication Critical patent/US4303726A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • AHUMAN NECESSITIES
    • A01AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
    • A01NPRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF; BIOCIDES, e.g. AS DISINFECTANTS, AS PESTICIDES OR AS HERBICIDES; PEST REPELLANTS OR ATTRACTANTS; PLANT GROWTH REGULATORS
    • A01N37/00Biocides, pest repellants or attractants, or plant growth regulators containing organic compounds containing a carbon atom having three bonds to hetero atoms with at the most two bonds to halogen, e.g. carboxylic acids
    • A01N37/02Saturated carboxylic acids or thio analogues thereof; Derivatives thereof
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/02Processes; Apparatus
    • B27K3/08Impregnating by pressure, e.g. vacuum impregnation
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/16Inorganic impregnating agents
    • B27K3/163Compounds of boron
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/16Inorganic impregnating agents
    • B27K3/22Compounds of zinc or copper
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/16Inorganic impregnating agents
    • B27K3/26Compounds of iron, aluminium, or chromium
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/34Organic impregnating agents
    • B27K3/38Aromatic compounds
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B27WORKING OR PRESERVING WOOD OR SIMILAR MATERIAL; NAILING OR STAPLING MACHINES IN GENERAL
    • B27KPROCESSES, APPARATUS OR SELECTION OF SUBSTANCES FOR IMPREGNATING, STAINING, DYEING, BLEACHING OF WOOD OR SIMILAR MATERIALS, OR TREATING OF WOOD OR SIMILAR MATERIALS WITH PERMEANT LIQUIDS, NOT OTHERWISE PROVIDED FOR; CHEMICAL OR PHYSICAL TREATMENT OF CORK, CANE, REED, STRAW OR SIMILAR MATERIALS
    • B27K3/00Impregnating wood, e.g. impregnation pretreatment, for example puncturing; Wood impregnation aids not directly involved in the impregnation process
    • B27K3/52Impregnating agents containing mixtures of inorganic and organic compounds
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S428/00Stock material or miscellaneous articles
    • Y10S428/907Resistant against plant or animal attack
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10TTECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T428/00Stock material or miscellaneous articles
    • Y10T428/4935Impregnated naturally solid product [e.g., leather, stone, etc.]
    • Y10T428/662Wood timber product [e.g., piling, post, veneer, etc.]

Definitions

  • This invention relates to timber preservation and more particularly relates to fungicidal compositons containing aluminum and/or boron and their use in preserving timber.
  • the fungicidal compositions of this invention comprise at least one metal-organic compound which contains aluminum and/or boron, at least one divalent metal element or metal radical, the aluminum and/or boron atom and the divalent atom or atoms being linked through oxygen atoms, and at least one carboxylic acid radical, together with a suitable carrier therefor.
  • the method according to the invention achieves protection of timber against wood-decaying fungi such as Coniophera epicna.
  • the fungicidal compositions may be introduced into the timber by any of the well known processes which ensure that the fungicide is uniformly distributed throughout the timber.
  • the fungicidal compositions are preferably uniformly distributed throughout the timber by means of vacuum impregnation, and sawn timber is particularly advantageously preserved by the method according to the invention.
  • the carboxylic acid radicals are preferably derived from carboxylic acids containing eight to ten carbon atoms. It has been found that the neodecanoic acid (Versatic 10) radical is particularly suitable on account of its good solubility and ease of processing.
  • a particularly preferred compound for use in the method according to the invention is zinc boron versatate.
  • Suitable carriers in which the metal-organic compounds are dissolved are organic solvents, preferably hydrocarbons and more preferably white spirit.
  • Previously proposed fungicidal compositions have usually contained not less than about 2 to 3% by weight based on the total weight of composition of divalent metal to ensure adequate protection of timber in all environmental conditions over a long period of time.
  • Employing the compositions of the present invention much less metal is required to give adequate protection. This is particularly important for timber which is exposed to heavy rainfall since metal soaps may slowly leach through wet timber.
  • fungicidal effect of the compounds used in the method according to the invention can be further enhanced by incorporating one or more substituted phenols of known fungicidal activity, for example, o-phenylphenol, nonylphenol and chlorinated phenols.
  • the invention provides a fungicidal composition
  • a fungicidal composition comprising at least one metal-organic compound which contains aluminum and/or boron, at least oe divalent metal element or metal radical, the aluminum and/or boron atom and the divalent atom or atoms being linked through oxygen atoms, and at least one carboxylic acid radical, and one or more substituted phenols together with a suitable carrier therefor.
  • compositions of the present invention will be further illustrated by reference to a series of tests comparing the fungicidal properties of compositions of the present invention with a known commerically available fungicide used for treating timber.
  • compositions which comprised zinc boron versatate or zinc naphthenate (comparison) dissovled in white spirit in different concentrations were subjected to a series of tests, described below, using blocks of Scots pine (Pinus Sylvestris) sapwood which were subjected to infestation by the wood destroying fungus Coniophera putenana.
  • Wood blocks sized 14.5 ⁇ 10 ⁇ 7 mm were oven dried for 18 hours, cooled and weighed. They were then transferred to a glass vessel which was evacuated of air down to a pressure of less than 10 mm. of mercury and were then held at this pressure for 10 minutes. The fungicidal treating solution was then admitted to the vessel to cover the blocks which were left covered for two hours to ensure full and uniform impregnation. The blocks were removed from the solution, allowed to drain and then reweighed to determine the uptake of the fungicidal treating compound. The blocks were then allowed to dry slowly for three weeks and then were sterilized by exposure to 1,2-expoxypropane vapor followed by ventilation in sterile air.
  • the blocks were then transferred aseptically to actively growing soil feeder block cultures of Coniophera tenua and incubated for six weeks at 22° C. At the end of this period the extent of overgrowth on the test blocks was noted. The blocks were removed from the culture, oven dried and reweighed so that the loss in mass of each block due to fungal decay could be noted.
  • Wood blocks sized 14.5 ⁇ 10 ⁇ 7 mm, were impregnated with fungicidal compositions as described in Example 1 and allowed to dry slowly for three weeks. The blocks were then leached in deionized water according to the following procedure:
  • the treated wood blocks were vacuum impregnated with water and allowed to soak for two hours. The water was then poured away and a further 30 ml. was added. The water was changed after 24 hours and 48 hours and thereafter at a minimum interval of 24 hours and a maximum of 72 hours until the water had been changed on a total of 10 occasions.
  • the blocks were then placed in a well ventilated oven at 45° to 50° C. in order to dry to a moisture content of about 20% by weight.
  • the blocks were then sterilized and exposed to cultures of Coniophera tenua as described in Example 1.
  • the leaching process did in most cases cause some redution in fungicidal activity, but the retained activity of the fungicidal compositions of the present invention was never inferior and in certain cases was superior to the corresponding comparative metal naphthenate compositions.
  • the blocks were allowed to dry slowly for three weeks, after which four of each set of six were sterilized with 1,2-epoxypropane vapor for 24 hours and then ventilated in sterile air for 72 hours.
  • the blocks were then transferred aseptically to actively growing soil feeder block cultures of Coniophera tenua and incubated for six weeks at 22° C. After this period the culture vessels were examined and the extent of overgrowth on the test blocks noted.
  • the blocks were removed from culture, any adhering mycelium scraped off and the blocks weighed, oven dried and reweighed so that the loss in weight of each block due to fungal decay could be calculated. The following results were obtained:

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Wood Science & Technology (AREA)
  • Forests & Forestry (AREA)
  • Chemical & Material Sciences (AREA)
  • Inorganic Chemistry (AREA)
  • Agronomy & Crop Science (AREA)
  • Pest Control & Pesticides (AREA)
  • Plant Pathology (AREA)
  • Health & Medical Sciences (AREA)
  • Dentistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Zoology (AREA)
  • Environmental Sciences (AREA)
  • Chemical And Physical Treatments For Wood And The Like (AREA)
  • Agricultural Chemicals And Associated Chemicals (AREA)
US06/162,820 1979-06-25 1980-06-25 Methods and compositions for preservation of timber Expired - Lifetime US4303726A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB7922049 1979-06-25
GB22049/79 1979-06-25

Publications (1)

Publication Number Publication Date
US4303726A true US4303726A (en) 1981-12-01

Family

ID=10506071

Family Applications (1)

Application Number Title Priority Date Filing Date
US06/162,820 Expired - Lifetime US4303726A (en) 1979-06-25 1980-06-25 Methods and compositions for preservation of timber

Country Status (5)

Country Link
US (1) US4303726A (enrdf_load_stackoverflow)
CA (1) CA1124009A (enrdf_load_stackoverflow)
DE (1) DE3023612A1 (enrdf_load_stackoverflow)
NZ (1) NZ194071A (enrdf_load_stackoverflow)
SE (1) SE446517B (enrdf_load_stackoverflow)

Cited By (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4554092A (en) * 1978-03-20 1985-11-19 Ema Company Preservative system composition for non-porous surfaces and wooden surfaces
US4555356A (en) * 1978-03-20 1985-11-26 Ema Company Wood preservative system composition
US4748188A (en) * 1978-03-20 1988-05-31 Guglielmo Richard J Sr Process for treating wood products with an antifouling/preservative composition
US4752509A (en) * 1985-04-04 1988-06-21 Rune Simonson Method for the impregnation of wood
US5024861A (en) * 1987-06-23 1991-06-18 Her Majesty The Queen In Right Of New Zealand Acting By And Through The Minister Of Forestry For New Zealand Gaseous or vapor phase treatment of wood with boron preservatives
US5612094A (en) * 1995-10-18 1997-03-18 U.S. Borax Inc. Compositions and methods for preserving wood products
US5645828A (en) * 1990-05-24 1997-07-08 Nisus Corporation Methods and compositions for retarding and eradicating infestation in trees and tree derived products
US5958463A (en) * 1991-07-29 1999-09-28 Agri-Tek, Inc. Agricultural pesticide formulations
US6426095B2 (en) 1990-05-24 2002-07-30 Nisus, Corp. Methods and compositions for retarding and eradicating infestation in trees and tree derived products
US20040173783A1 (en) * 2002-01-16 2004-09-09 Smt, Inc. Flame retardant and microbe inhibiting methods and compositions
US20060011094A1 (en) * 2004-07-14 2006-01-19 Somerville Acquisitions Company, Inc. D/B/A Summit Research Labs Wood preservative composition
US20100062153A1 (en) * 2002-01-16 2010-03-11 Smt, Inc. Aqueous and dry duel-action flame and smoke retardant and microbe inhibiting compositions, and related methods

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2216775A (en) * 1934-03-30 1940-10-08 James R Helson Method of seasoning wood
GB972804A (en) 1962-02-23 1964-10-14 Hardman & Holden Ltd Improvements relating to metal-organic compounds
US3877979A (en) * 1972-09-08 1975-04-15 C B M Enterprises Ltd Process of treating wood against stain and decay
US4234340A (en) * 1979-05-11 1980-11-18 Pellico Michael A Antifouling marine coating composition containing agar, a plasticizer and a strengthening agent

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2216775A (en) * 1934-03-30 1940-10-08 James R Helson Method of seasoning wood
GB972804A (en) 1962-02-23 1964-10-14 Hardman & Holden Ltd Improvements relating to metal-organic compounds
US3877979A (en) * 1972-09-08 1975-04-15 C B M Enterprises Ltd Process of treating wood against stain and decay
US4234340A (en) * 1979-05-11 1980-11-18 Pellico Michael A Antifouling marine coating composition containing agar, a plasticizer and a strengthening agent

Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4555356A (en) * 1978-03-20 1985-11-26 Ema Company Wood preservative system composition
US4748188A (en) * 1978-03-20 1988-05-31 Guglielmo Richard J Sr Process for treating wood products with an antifouling/preservative composition
US4554092A (en) * 1978-03-20 1985-11-19 Ema Company Preservative system composition for non-porous surfaces and wooden surfaces
US4752509A (en) * 1985-04-04 1988-06-21 Rune Simonson Method for the impregnation of wood
US5024861A (en) * 1987-06-23 1991-06-18 Her Majesty The Queen In Right Of New Zealand Acting By And Through The Minister Of Forestry For New Zealand Gaseous or vapor phase treatment of wood with boron preservatives
US20040062747A1 (en) * 1990-05-24 2004-04-01 Nisus Corporation Methods and compositions for retarding and eradicating infestation in trees and tree derived products
US5645828A (en) * 1990-05-24 1997-07-08 Nisus Corporation Methods and compositions for retarding and eradicating infestation in trees and tree derived products
US6426095B2 (en) 1990-05-24 2002-07-30 Nisus, Corp. Methods and compositions for retarding and eradicating infestation in trees and tree derived products
US6630174B2 (en) 1990-05-24 2003-10-07 Nisus Corporation Methods and compositions for retarding and eradicating infestation in trees and tree derived products
US5958463A (en) * 1991-07-29 1999-09-28 Agri-Tek, Inc. Agricultural pesticide formulations
US5612094A (en) * 1995-10-18 1997-03-18 U.S. Borax Inc. Compositions and methods for preserving wood products
US20040173783A1 (en) * 2002-01-16 2004-09-09 Smt, Inc. Flame retardant and microbe inhibiting methods and compositions
US20100062153A1 (en) * 2002-01-16 2010-03-11 Smt, Inc. Aqueous and dry duel-action flame and smoke retardant and microbe inhibiting compositions, and related methods
US7767010B2 (en) 2002-01-16 2010-08-03 Smt, Inc. Flame retardant and microbe inhibiting methods and compositions
US8715540B2 (en) 2002-01-16 2014-05-06 MG3 Technologies Inc. Aqueous and dry duel-action flame and smoke retardant and microbe inhibiting compositions, and related methods
US20060011094A1 (en) * 2004-07-14 2006-01-19 Somerville Acquisitions Company, Inc. D/B/A Summit Research Labs Wood preservative composition
WO2006019442A3 (en) * 2004-07-14 2006-10-26 Somerville Acquisitions Compan Wood preservative composition
US7198663B2 (en) 2004-07-14 2007-04-03 Sommerville Acquisitions Co., Inc. Wood preservative composition
US20070110908A1 (en) * 2004-07-14 2007-05-17 Somerville Acquisitions Company, Inc. D/B/A Summit Research Labs Method of preserving wood
USRE40589E1 (en) 2004-07-14 2008-12-02 Sommerville Acquisitions Company, Inc. Wood preservative composition

Also Published As

Publication number Publication date
SE8004663L (sv) 1980-12-26
DE3023612C2 (enrdf_load_stackoverflow) 1990-07-05
CA1124009A (en) 1982-05-25
NZ194071A (en) 1982-05-25
SE446517B (sv) 1986-09-22
DE3023612A1 (de) 1981-01-29

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